3-[2-(morpholin-4-yl)ethyl]-6-phenyl-2-sulfanyl-3h,4h-thieno[3,2-d]pyrimidin-4-one CAS 742118-91-8

Purity 97%+In StockPharmaceutical Standards
CAS No.742118-91-8
Molecular FormulaC18H19N3O2S2
Molecular Weight373.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-[2-(morpholin-4-yl)ethyl]-6-phenyl-2-sulfanyl-3h,4h-thieno[3,2-d]pyrimidin-4-one CAS 742118-91-8 chemical structure

Description

3-[2-(morpholin-4-yl)ethyl]-6-phenyl-2-sulfanyl-3h,4h-thieno[3,2-d]pyrimidin-4-one (CAS 742118-91-8), molecular formula C18H19N3O2S2 and molecular weight 373.49 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 3-[2-(morpholin-4-yl)ethyl]-6-phenyl-2-sulfanyl-3h,4h-thieno[3,2-d]pyrimidin-4-one (C18H19N3O2S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC18H19N3O2S2
Molecular Weight373.49 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms3
Sulfur Atoms2

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